Adjusting device for camera lucidas.



JATENTED MAY 7,1907. A.'TAYLOR. v ADJUSTING DEVICE FOR CAMERA LUGIDAS.

APPLIOATION FILED AUG. 21, 1906.

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INVENTOH fi/exazz drz'n a ZZzy Z01 WITNESSES A TORNEYS r": NORRISPETERsCm, wnsnmarmv. 0. cv

No. 853,136. PATENTED MAY 7, 1907.

A. TAYLOR. ADJUSTING DEVICE FOR CAMERA LUGIDAS.

APPIIIIOATION FILED AUG. 21. 1906.

2 sums-SHEET 2.

WITNESSES INVENTOH I /w/wnmra ATTORNEYS UNITED STATES PATENT FFICE.

ADJUSTING DEVICE FOR CAMERA LUCIDAS- Specification of Letters Patent.

Patented May '7, 1907.

Application filed August 21, 1906. Serial No. 331,481.

To all whom it may concern:

Be it known that I, ALEXANDRINA TAYLOR, a citizen of the United States,and a resident of the city of New York, borough of Manhattan, in thecounty and State of New York, have invented anew and Improved AdjustingDevice for Camera Lucidas, of which the following is a full, clear, andexact description.

My invention has for its principal object to provide means adapted toadjustably secure a camera-lucida to microscopes of various sizes.

In the devices now in use camera-lucidas are generally secured fixedlyto a clamping collar which is fastened to the draw tube of a microscope.Such clamping collars are generally not adjustable to draw tubes ofdifferent dimensions and, therefore, separate camera lucidas and clampsfixedly secured thereto are required for each different size of drawtube. As the camera lucidas are secured to the draw tube of themicroscopes it is necessary to remove the eye piece from the draw tubein order to attach the clamping collar connected with the camera lucida,and in most instances it is necessary to slide the clamping collar alongthe draw tube of the microscope with the hands to find a properelevation for the camera before clamping the camera to the draw tube. Attimes, moreover, it becomes necessary to'remove the draw tube from themicroscope in order to insert a compensating eye piece or other devicein its place, and in such instances the camera lucida must be detachedfrom the draw tube and be again attached to the device substituted inits stead, with the usual experimenting to adjust the camera lucida.

My invention, therefore, has for its object to dispense with suchinconveniences and disadvantages found in the devices now in generaluse. This I accomplish by means of an adjustable clamp adapted to beattached to the body tube of a microscope, instead of to the draw tube,and mechanism mounted upon said clamp, adapted to support a cameralucida, and adjust the axis of said camera relatively to the axis of themicroscope, as illustrated in the accompanying drawings, in whichdrawings like characters of reference indicate like parts throughout theviews, and in which Figure 1 is a side elevation of a device embodyingmy invention attached to a microscope, and supporting a camera lucidaindicated in dotted lines Fig. 2 is a plan view of the parts shown inFig. l with the camera lucida removed Fig. 3 is a horizontal sectiontaken on the line 3-3 of Fig. 1,- Fig. 4 is a vertical section taken onthe line f4 of Fig. 2 Fig. 5 is a side elevation of the parts shown inFig. 1 viewed from the opposite side thereof; Fig. 6 is a fragmentaryplan of a shelf extending outward from one of the stages; Fig. 7 is avertical fragmentary section of a yoke supporting an adjusting plate,

taken on the line 77 of Fig. 5 Fig. 8 is a horizontal section taken onthe line 88 of Fig. 9 5 and Fig. 9 is a vertical section taken on theline 99 of Fig. 8.

As illustrated in the drawings, 1 represents the body of a microscope ofordinary construction, having a draw tube 2 secured to said body. Aclamp 3 is adjustably secured to the body 1 of the microscope, andsupports a vertical standard 4 adjustable on said clamp. A first stage 5is fixedly secured to the upper end of the standard 4, and supports asecond stage 6 which is adjustable transversely of the first stage. Athird stage 7 is mounted upon the second stage 6 and adjustablelengthwise thereof. An auxiliary stage 8 is mounted upon the third stage7 and supports an adjusting plate 9 which is adapted to extend over theeye piece of a microscope. A camera lucida 10 of any desiredconstruction may be supported on the third stage 7, and by means of suchadjustment the axis of the camera lucida may be brought into coincidencewith the axis of the microscope. The clamp 3 is provided with oppositelydisposed jaws 3 and 3 The jaw 3, is rigidly secured to one of the arms 3of the clamp, while the opposite jaw 3 is attached to a rack 3 havingits bearing in a rectangular sleeve 3 formed on the end of the other arm3 of the clamp. A pinion 3 is mounted upon a spindle which is journaledin the rectangular sleeve 3 and pro vided on its outer end with a head 3adapted to rotate the pinion 3 and move the toothed rack 3 in thedirection of its length. The inner edge of the yoke 3 is provided with arecess 3 shown in Fig. 9, adapted to receive a clamping jaw 3 movabletransversely of the clamp 3 in a diagonal line. The jaw 3 is provided onits upper surface with an inclined wall 3 extending from the front tothe rear of the jaw 8 in a diagonal line, as shown in Figs. 3 and 9. Arib 3 is formed on the upper wall of the recess 3 and extends di- IIOagonally across said recess and bears against the inclined wall 3 of thejaw 3 and thereby guides the transverse diagonal movement of said jaw 3in the recess 3 A vertical lug 3 is formed on the rear end of the jaw 3which is adapted to travel in a sub-recess 3 formed in the body of theclamp and opening into the recess 3 As the jaw 3 is drawn forwardtransversely of the clamp 3, the lug 3 comes in contact with the forwardwall of the recess 3 and thereby stops the forward movement of said jawand prevents the jaw from being removed from the recess 3 A set screwhaving a milled head 3 is attached to the under side of the jaw 3 andmoves in a slot 3 formed in the under side of the clamp 3, as shown inFig. 8. By means of such construction the clamp 3 is adapted to besecured to the body tube of different microscopes varying in size. Inadjusting the clamp to a microscope the jaw 3 is first brought 1ncontact with the body tube of the microscope; the sliding jaw 3 may thenbe moved diagonally across the clamp 3 until its face comes in contactwith said tube of the microscope. The jaw 3 is then moved in' ward bymeans of the pinion 3 engaging the rack 3 which supports said jaw,thereby securing the clamp firmly to the microscope. The upper surfaceof the clam 3 is provided with a graduated scale 3* a apted to indicatethe diameter of the tube which may be secured by the central jaw 3 whenits center, as indicated by the transverse line 3, registers with thedifferent markings of the scale. The clamp 3 is also provided with arectangular sleeve 3 adapted to receive the standard 4 having a toothedrack 4 formed on its edge. A pinion 41 is mounted upon a spindle 4journaled in the sleeve 3, and is operated by means of a milled head 4secured to the end of-the spindle M, whereby to raise or lower at willthe vertical standard 4:. A scale 45 is formed on the side of thestandard 4, the markings of which are adapted to register with the upperor lower surface of the annular sleeve 3, and thereby indi cate theposition of the standard 4 relatively to the clamp 3. A plate F isformed on or attached to the upper end of the standard 4,

and the stage 5 is rigidly secured to the plate- P. A bracket 5 isattached to the stage 5, in which bracket is journaled a spindleprovided on one end with a milled head 5 and on its opposite end with apinion 5. The pinion 5 engages a rack 6 disposed transversely of thesecond stage 6, and moves said stage 6 toward or away from themicroscope, as desired. A beveled rib or tongue 6 is formed on the underside of the stage 6, and engages a beveled groove 5 formed on the uppersurface of the stage 5, so as to hold said stages in their relativepositions and enable the stage 6 to slide transversely of its length onthe stage 5. A bracket 6 is attached to the stage 6, in which isjournaled a spindle 6 having onits outer end a milled head 6 and on itsinner end a pinion 6 which engages a rack 7' formed on the stage 7, bymeans of which the stage 7 a is adapted to be adjusted transversely ofits length and lengthwise 0f the stage 6.

A camera lucida may be secured to the stage 7, and when so secured maybe adjusted relatively to the microscope in the manner alreadydescribed, thevertical standard 4 providing for the vertical adjustment,the stage 6 providing for an adjustment in a line radial to themicroscope, and the stage 7 providing for an adjustmentin a linetransversely to said radial line. An arm 7 extends outward from thestage 7 preferably in a curved line, and is provided on its outer endwith a standard 7 preferably provided with a rack 7 The auxiliary stage8 is provided with a recess 8 adapted to receive the standard 7, and apinion 8 which engages said rack is secured to the inner end of aspindle journaled in the auxiliary stage 8. I A milled head 8 is securedto the opposite end of said spindle, and is adapted thereby to rotatethe pinion 8 and raise and lower the auxiliary stage 8 on the standard7. The upper surface of the auxiliary stage 8 is provided with a recess8*, the inner portion of which preferably extends in the arc of acircle, as shown in Fig. 6. A hinged pin 8 is secured to the stage 8, towhich is hinged the end 9 of a yoke 9 having an arc flange 9 formed onits inner portion. The contour of the main portion of the yoke 9Corresponds with that of the recess 8 of the auxiliary stage 8, and isof similar dimensions so that such portion of the yoke 9 will exactlyfill the recess 8 with the upper surface of the yoke 9 even with theupper surface of the auxiliary stage 8. The arc flange 9 of the yoke 9is provided with a curved angular recess 9, as shown 'in Fig. 7, adaptedto clamp the edge of an adjusting plate 9 secured to said flange bycement or other suitable means. The central portion of the adjustingplate 9 is provided with an aperture 9, and the upper surface of saidplate is provided with scales 9 arranged in radial lines quartering saidplate. The plate 9 is made of glass or other transparent material, and

when the parts are in position and attached parent through thetransparent body of the adjusting plate 9, and its position in relationto said adjusting plate, as indicated by the scales 9 marked on saidplate, indicates the proper direction in which said plate, together withthe auxiliary stage 8 and the stage 7 upon which it is mounted, are tobe moved so as thereby to bring the axis of the camera lucida securedtothe stage 7 into coincidence with the axis of the microscope. Theadjusting plate 9 may be turned upward on the hinged end 9 of the yoke 9sov as to be out of alinement with the draw tube of the microscope, andpermit the eye piece and draw tube to be removed when desired. Theentire auxiliary stage 8 may be detached from the standard 7 of thestage 7 by turning the milled head 8 until the pinion 8 is free from therack 7 c of the standard 7 d of the upper stage 7. The arm 7 b of thestage 7 is spaced at a considerable distance from the draw tube 2 of themicroscope, as indicated in Fig. 6, thereby enabling a device larger indiameter than the draw tube 2 to be connected with the body tube of amicroscope without disturbing the adjustment of the camera lucida.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

. l. The combination with an adjustable clamp adapted to be attached tothe body tube of microscopes having different diameters, of a standardmounted on said clamp, and a stage mounted on said standard ada ted tosupport a camera lucida and adjusta le vertically relatively to saidclamp, substantially as shown and described.

2. The combination with a clamp adapted to be adjusted to the body tubeof microscopes having different diameters, of a stage mounted on saidclamp adjustable vertically relatively thereto and adapted to support acamera lucida, substantially as shown and described.

3. The combination with a clamp adapted to be adjusted and secured tothe body tube of microscopes having different diameters, of a standardmounted on said clamp and provided with a measuring gage, and a stagemounted on said standard adapted to supporta camera lucida andadjustable vertically relatively to said clamp, substantially as shownand described.

4. The combination with a clamp, provided with oppositely disposedclamping jaws, one of which is adjustable relatively to the other, andwith a recess intermediate said jaws having a guideway extendingdiagonally therein, and provided with a registering gage arranged oversaid recess, a clamping jaw adapted to move diagonally in said recessand provided with a gage line adapted to re ister with the gage of saidclamp, a stan ard, and a stage adapted to support a camera-lucidamounted on said standard and adjustable vertically relatively to saidclamp, substantially as shown and described.

5. The combination with an adjustable clamp, of a standard mounted onsaid clamp, a stage mounted on said standard and adjustable transverselythereof, and a second stage adapted to support a camera lucida andadjustable transversely of the first stage, substantially as shown anddescribed.

6. The combination with an adjustable clamp, of a standard mounted onsaid clamp, a stage mounted on said standard and adjustable transverselythereof, a second stage adapted to support a camera lucida and adjustable transversely of the first stage, and an auxiliary stage mountedupon the second stage and provided with a graduated plate having acentral aperture, substantially as shown and described.

7. The combination with an adjustable clamp, of a standard mounted onsaid clamp and adjustable vertically thereon, a stage mounted on saidstandard and adapted to support a camera lucida, and an auxiliary stagehaving a transparent graduated plate provided with a central apertureand hinged to said auxiliary stage, substantially as shown anddescribed.

8. The combination with an adjustable clamp, of a standard mounted onsaid clamp and adjustable vertically thereon, a stage mounted on saidstandard adapted to support a camera'lucida, and an auxiliary stagemounted upon said camera stage, adjustable vertically thereon andprovided with a transparent graduated adjusting plate, provided with acentral aperture, substantially as shown and described.

9. The combination with a clamp provided with oppositely disposedclamping jaws, one of which is adjustable relatively to the other, andwith a recess intermediate said jaws having a guideway extendingdiagonally therein, a clamping jaw adapted to move diagonally in saidrecess, a standard adjustable on said clamp, and a stage adapted tosupport a camera-lucida mounted on said standard and adjustablevertically relative to said clamp, substantially as shown and described.

10. The combination with a clamp provided with oppositely disposed claming jaws, one of which is adjustable relative y to the other, and with arecess intermediate said jaws having a slot and a guide extendingdiagonally across said recess, a clamping jaw adapted to move diagonallyin said recess, means for locking said jaw in position on the clamp, astandard mounted on said clamp, and a stage adapted to support acameralucida mounted on said standard and adjustable relatively to saidclamp, substantially as shown and described.

11. The combination with an adjustable clamp, of a standard mounted onsaid clamp,

plate adapted to be arranged over the eye.

piece of a microscope and provided with age marks arranged in radiallines adapte to indicate the position of said eye piece rela- Io tivelyto said gage, substantially as shown and described.

12. The combination with a telescope having a body tube, and a drawtube, of a clamp adapted to be adjustably secured to the body tube ofmicroscopes of differentdiameters, a I 5 vertically adjustable standardmounted on said clamp, and means for adjustingv a camera lucidarelatively to the axis of said microscope, substantially as shown anddescribed. 20

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ALEXANDRINA TAYLOR.

Witnesses: v

ROBERT W. HARDIE, JNo. M. BITTER.

